editor, Alin Tat and Stefan Popenici
Council for Research in Values and Philosophy, 2008
Buku Teks
edited by Maurizio d`Entreves and Ursula Vogel
Routledge, 2000
Buku Teks SO
Leon Dyczewski, editor
Council for research in values and philosophy, 2002
Buku Teks SO
Naoko, Kumagai
LTCB, 2016
Buku Teks SO
Gomperz, Heinrich
Christopher Pub. House, 1953
Buku Teks SO